Different types of edges include, but are not limited to: entire, serrate, dentate, crenate, undulate, sinuate, incised, lobed and cleft. Entire blade edges have an even line, without teeth or notches.
What is the leaf blade called?
lamina Structure of a Typical Leaf Each leaf typically has a leaf blade called the lamina, which is also the widest part of the leaf. Some leaves are attached to the plant stem by a petiole. Leaves that do not have a petiole and are directly attached to the plant stem are called sessile leaves.
What is leaf blade shape?
Blade shape Leaf blade shape can be highly variable, and often difficult to determine. Sagittate leaf blades are arrow-head shaped with the lobes turning inwards (rather than outwards). Ovate leaf blades are more rounded than sagittate leaf blades.
What are the 4 types of leaves?
There are two different types of leaves – simples leaves and compound leaves. The other types of leaves include acicular, linear, lanceolate, orbicular, elliptical, oblique, centric cordate, etc. They perform the function of photosynthesis and help in the removal of excess water from the aerial parts of the plant.
What are the three parts of the leaf blade?
3. Leaf-blade or Lamina. It is the thin, flat part of the leaf that is typically green in color. It is further divided into three parts: i) leaf apex – the tip of the leaf blade, ii) leaf margin – the edge of the leaf and, iii) leaf veins – the small channels or capillaries, which are further subdivided into venules.
What are the two types of leaf blade?
Undulate blades form a wavy line on their edge that bends slightly inward and outward in succession. Sinuate blades are wavy. Incised blades are sharp, deep irregular teeth. Lobed blades have rounded incisions that are not deeper than halfway between the edge and center of the leaf.
What are the 3 types of leaves?
1 There are three basic types of leaf arrangements found in woody trees and shrubs: alternate, opposite, and whorled.
How do I identify a leaf type?
The most obvious aspect to examine is the shape of the leaf. If it is an uninterrupted shape, it is simple. If the shape divides into smaller leaf sets the leaf is compound. Identifying plant leaves that are compound divides them into subsets.